EP1376470A3 - Multiple mode digital X-ray imaging system - Google Patents

Multiple mode digital X-ray imaging system Download PDF

Info

Publication number
EP1376470A3
EP1376470A3 EP03075481.6A EP03075481A EP1376470A3 EP 1376470 A3 EP1376470 A3 EP 1376470A3 EP 03075481 A EP03075481 A EP 03075481A EP 1376470 A3 EP1376470 A3 EP 1376470A3
Authority
EP
European Patent Office
Prior art keywords
data sets
data
response
correction
processing system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03075481.6A
Other languages
German (de)
French (fr)
Other versions
EP1376470A2 (en
Inventor
Richard E. Colbeth
John M. Pavokovich
Edward J. Seppi
Edward G. Shapiro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Varex Imaging Corp
Original Assignee
Varian Medical Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/978,177 external-priority patent/US5970115A/en
Application filed by Varian Medical Systems Inc filed Critical Varian Medical Systems Inc
Priority claimed from EP97950706A external-priority patent/EP0900428B1/en
Publication of EP1376470A2 publication Critical patent/EP1376470A2/en
Publication of EP1376470A3 publication Critical patent/EP1376470A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/32—Transforming X-rays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
    • H04N25/44—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
    • H04N25/443—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array by reading pixels from selected 2D regions of the array, e.g. for windowing or digital zooming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
    • H04N25/46—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by combining or binning pixels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/68—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects

Abstract

A data processing system (14) for processing a stream of multiple bit data representing a two-dimensional pixel array is disclosed. The processing system comprises a first data processing circuit (104) coupled for receiving a plurality of image data sets representing the pixel array and receiving a plurality of correction data sets representing a plurality of correction factors to the image data sets and configured to generate a plurality of corrected data sets in response to the plurality of image data sets and the plurality of correction data sets. The processing system also comprises a first data selection circuit (106) coupled to said first data processing circuit (104) and configured to generate a plurality of first selected data sets by selecting a corresponding corrected data set in response to a status subset in a corresponding correction data set having a first value and selecting the corresponding correction data set in response to the status subset having a second value.
EP03075481.6A 1996-11-29 1997-11-26 Multiple mode digital X-ray imaging system Withdrawn EP1376470A3 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US75379996A 1996-11-29 1996-11-29
US5692696P 1996-11-29 1996-11-29
US56926P 1996-11-29
US753799 1996-11-29
US08/978,177 US5970115A (en) 1996-11-29 1997-11-25 Multiple mode digital X-ray imaging system
US978177 1997-11-25
EP97950706A EP0900428B1 (en) 1996-11-29 1997-11-26 Multiple mode digital x-ray imaging system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97950706A Division EP0900428B1 (en) 1996-11-29 1997-11-26 Multiple mode digital x-ray imaging system

Publications (2)

Publication Number Publication Date
EP1376470A2 EP1376470A2 (en) 2004-01-02
EP1376470A3 true EP1376470A3 (en) 2016-10-19

Family

ID=29718682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03075481.6A Withdrawn EP1376470A3 (en) 1996-11-29 1997-11-26 Multiple mode digital X-ray imaging system

Country Status (1)

Country Link
EP (1) EP1376470A3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920428A (en) * 1988-07-08 1990-04-24 Xerox Corporation Offset, gain and bad pixel correction in electronic scanning arrays
EP0439912A2 (en) * 1989-11-30 1991-08-07 Texas Instruments Incorporated Circuit and method for normalizing detector output
US5371470A (en) * 1993-03-04 1994-12-06 Photometrics, Ltd. Transverse filter circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920428A (en) * 1988-07-08 1990-04-24 Xerox Corporation Offset, gain and bad pixel correction in electronic scanning arrays
EP0439912A2 (en) * 1989-11-30 1991-08-07 Texas Instruments Incorporated Circuit and method for normalizing detector output
US5371470A (en) * 1993-03-04 1994-12-06 Photometrics, Ltd. Transverse filter circuit

Also Published As

Publication number Publication date
EP1376470A2 (en) 2004-01-02

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